US government suspends access to Claude Fable 5 and Claude Mythos 5 – AI News – #2 June 2026
Just days after their highly anticipated and revolutionary launch, Anthropic’s next-generation models, Claude Fable 5 and Claude Mythos 5, have been abruptly disabled for all users worldwide. On June 12, 2026, Anthropic received an emergency export control directive from the US government, ordering an immediate suspension of access to these models for any foreign national, whether inside or outside the United States, including Anthropic's own foreign employees. To maintain legal compliance, the company was forced to suddenly deactivate Fable 5 and Mythos 5 for its entire customer base. Anthropic strongly disagrees with the directive, calling it a misunderstanding and arguing that the alleged security vulnerabilities cited by Washington are minor, noting that existing publicly available models, such as OpenAI's GPT-5.5, already display equivalent capabilities.
Read more 
